在金属铋作用下 ,在 THF- H2 O介质中 ,由二硒醚与溴苄反应制得了苯基苄基硒醚和二苄基硒醚 .采用 CAN作氧化剂 ,在相转移催化条件下高产率地合成了具有重要价值的有机合成中间体苯苄亚硒砜和苄基亚硒砜 .然后与对甲苯磺酸作用得到了两种新型的高选择性氧化剂 BPS- TSA和 BS- TSA.该方法具有操作简便 ,原料易得 ,低毒性 ,高产率等优点 . Under the action of metal bismuth, phenylbenzyl selenide and dibenzylselenyl selenide were prepared from the reaction of dianselenyl ether and benzyl bromide in THF-H 2 O. The reaction conditions of phase transfer catalysis were as follows: using CAN as oxidant, Synthesis of valuable organic synthesis intermediates benzyl benzenesulfonate and benzylselenoselenone.Then with p-toluenesulfonic acid obtained two new highly selective oxidants BPS-TSA and BS-TSA.This method Easy to operate, easy to get raw materials, low toxicity, high yield and so on.